Recover account 😢

I accidentally log in into 2 acc in one website.
So…what happen is my acc is been replaced an lvl 3 acc now my old four
Mythical is gone.
If you want to see check it out to YT “TckTack supermechs” name GL eO.
Now its gone pls GM help me cause that acc is my fathers account and now its goneT_T.